Bindings, Platforms, and Innovation
This presentation focuses on the Internet and separating myth from fact, history from the future, and the mundane from the imaginative. Bob Frankston presents a vision of what could and should be.
Tracking change and innovation in the enterprise software development community
Posted by Paul Duvall, Steve Matyas, Andrew Glover on Aug 05, 2007 01:16 AM
Continuous Integration (CI) is a basic Extreme Programming (XP) practice, but it is also used by teams that would never consider XP for their work. Martin Fowler has pointed out that, at this point, it's become an essential part of any competent software development activity. In their book Continuous Integration: Improving Software Quality and Reducing Risk, Paul Duvall, Steve Matyas and Andrew Glover aim to help teams make this important practice a "non event" on their projects - something that happens unobtrusively and as a matter of course. When successfully implemented, CI ensures that any individual developer's work is only a few hours away from a shared project state and can integrated back into that state in minutes. InfoQ presents a pdf download (14MB) of Chapter 6: Continuous Testing, which presents strategies for writing the different kinds of tests required to ensure system quality.
Agile Development: A Manager's Roadmap for Success
5 Ways to Ensure Application Performance
Effective Management of Static Analysis Vulnerabilities and Defects
Ensuring Code Quality in Multi-threaded Applications
Testing is a key area for CI improvement, since the bulk of an application's build time is usually applied to running tests. Poorly constructed test suites can cause build times to bog down, at which point teams start to circumvent their own agreed-upon CI practices just to recapture the time they need to code. These shortcuts increase the likelihood of "red" (broken) builds, and can lead to a "broken windows" scenario in which it's impossible to judge code quality because the build runs "red" more often than not, increasing the risk of serious production flaws, and provoking the addition of lengthy pre-release testing that delays deployment.
In this chapter on testing the authors describe the following topics and the relationships between them:
Are you categorizing your automated tests, such as unit tests, component tests, system tests, and functional tests?The chapter is amply illustrated with examples from various testing frameworks, including TestNG, Ruby, DbUnit, StrutsTest, Selenium and JUnit.
Are you configuring your CI system to run each test category with different staged builds?
Are you writing automated unit tests for each defect?
How many asserts are in each of your test cases? Are you limiting each test case to one assert?
Are these tests automatable? Has your project committed automated developer tests to the version control repository?
This presentation focuses on the Internet and separating myth from fact, history from the future, and the mundane from the imaginative. Bob Frankston presents a vision of what could and should be.
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